High phase change enthalpy, controllable temperature, and stable shape can expand the application of phase change materials (PCMs) in energy storage. In this study, a series of novel form-stable PCMs with high phase change enthalpy (169–195 J/g) and controllable temperature (45.3–61.4°C) were prepared. The PCMs exhibited a semi-interpenetrating polymer network (semi-IPN) structure resulting from the combination of polyethylene glycol (PEG) and a three-dimensional (3-D) network gel. The gel itself featured an inherent phase change characteristic and a 3-D network structure. Thus, it improved the phase transition enthalpy of the materials and facilitated the formation of a semi-IPN that endowed the materials with excellent form-stable properties. In addition, the latent heat of the composites (169–195 J/g) is much higher than most of the previously reported composites using PEG as phase change component (68–132 J/g). © 2017 American Institute of Chemical Engineers AIChE J, 2017

中文翻译：

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具有高相变焓的新型半互穿网络结构相变复合材料

高的相变焓，可控的温度和稳定的形状可以扩展相变材料（PCM）在能量存储中的应用。在这项研究中，制备了一系列新型的形状稳定的PCM，具有高相变焓（169–195 J / g）和可控温度（45.3–61.4°C）。PCM表现出由聚乙二醇（PEG）和三维（3-D）网络凝胶的组合产生的半互穿聚合物网络（semi-IPN）结构。凝胶本身具有固有的相变特性和3-D网络结构。因此，它改善了材料的相变焓并促进了半IPN的形成，该半IPN使材料具有出色的形状稳定特性。此外，复合材料的潜热（169–195 J / g）远高于以前报道的大多数使用PEG作为相变组分的复合材料（68–132 J / g）。©2017美国化学工程师学会AIChE的Ĵ，2017年